Blue Blossom (Shishitsu) is a Manga/Manhwa/Manhua in english language, Adventure series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

Today, Earth is put up for auction.” Nino, an utterly ordinary young man, wakes up to find himself reincarnated on an unknown alien planet—with a body resembling that of a reptile. To reclaim his birthplace that has been put up for auction, the starting gun fires on a race that will decide Earth’s fate, with the entire universe as its stage!!